Peniocereus (A.Berger) Britton & Rose

Peniocereus (en)

Genus

Angiosperms > Caryophyllales > Cactaceae

Characteristics

Shrubs, low, erect to sprawling, arching, or scrambling, sparingly branched. Roots turnip-shaped or tuberlike and clustered. Stems unsegmented, gray, gray-green, greenish brown, brown, or purplish, columnar, proximally terete, distally terete or angled [or dimorphic with young stems 3-5-angled and adult stems terete in two Mexican species], [12-]25-300[-400] × 0.3-2[-6] cm, rigid, slender, canescent [or papillate]; ribs [3-]4-9[-20], often prominent, rib crests usually straight, uninterrupted; areoles (3.5-)5-20 mm apart along ribs, circular to elliptic, lanose or sometimes glabrate; areolar glands absent; cortex and pith not mucilaginous. Spines 5-15(-17) per areole, yellowish white, sometimes with black tips, conic, subulate with swollen bases, sometimes acicular to bristlelike, 1.5-4[-25] mm, puberulent to glabrate, scurfy; radial and central spines similar. Flowers nocturnal (remaining open next day), usually borne laterally along distal portions of ribs, at adaxial edges of areoles, usually fragrant, salverform with long tube flaring abruptly near apex, usually 7-25 cm; tepals lanceolate to oblanceolate, apiculate to attenuate; outer tepals greenish, usually tinged with red, purple, brown, or white, 25-50 × 2-6 mm, margins entire or minutely ciliate; inner tepals commonly white [or red], sometimes lightly tinged cream, rose, red, or green, 25-75 × 8-12 mm, margins entire to slightly undulate; ovary with low tubercles, minutely scaly or scaleless, spiny, areoles woolly; stigma lobes 9-12, white to yellow-white, 10-15 mm. Fruits indehiscent, red to scarlet [carmine to purple], pyriform or ellipsoid [to ovoid], [30-]40-90 × 25-50 mm, fleshy, low tuberculate, scaleless, spiny; pulp reddish, in some taxa sweet and edible; floral remnant persistent. Seeds black, broadly oblong, 1-4 × 0.8-2.5 mm, shiny or dull; testa rugose, pitted and/or with raised polygonal cells. x = 11.
More
For description see Nyctocereus serpentinus (Lag. & Rodr.) Britton & Rose.
Life form perennial
Growth form shrub
Growth support -
Foliage retention deciduous
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) -
Root system -
Rooting depth (meter) -
Root diameter (meter) -
Flower color -
Blooming months -
Fruit color -
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway -

Environment

Light -
Soil humidity -
Soil texture -
Soil acidity -
Soil nutriment -
Hardiness (USDA) 5-11

Usage

Uses -
Edible -
Therapeutic use -
Human toxicity -
Animal toxicity -

Cultivation

Mode -
Germination duration (days) -
Germination temperacture (C°) -
Germination luminosity -
Germination treatment -
Minimum temperature (C°) -
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Images

Peniocereus unspecified picture

Distribution

Peniocereus world distribution map, present in Australia and United States of America

Identifiers

LSID -
WFO ID wfo-4000028539
COL ID 6KNQ
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR) Link

Synonyms

Cullmannia Peniocereus Neoevansia Cereus

Lower taxons

Peniocereus striatus Peniocereus papillosus Peniocereus johnstonii Peniocereus marianus Peniocereus greggii Peniocereus lazaro-cardenasii Peniocereus viperinus Peniocereus marnierianus Peniocereus zopilotensis